This is a contrapuntal keyboard work by Telemann, likely intended for organ or harpsichord. Its brilliance lies in the intricate interplay of melodic lines and the clear harmonic progression.
Focus on maintaining clarity in each voice while navigating the complex contrapuntal texture.
Alle, die gottselig leben wollen, TWV 1:50 is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 4.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Alle, die gottselig leben wollen, TWV 1:50 lasts about 3.5 minutes.
Alle, die gottselig leben wollen, TWV 1:50 is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.